IR – High Reliability Radiation Hardened Hybrid POL Voltage Regulator

IRF-HiRel_Logo_RGB1The SBI5AS point of load (POL) DC-DC voltage regulator is part of the International Rectifier HiRel family of products. It is a space qualified, high-reliability, hermetically sealed, thick film hybrid designed to provide a single regulated DC output from a regulated or unregulated DC voltage power source. The output current rating is 6A maximum up to the output power of 20W, depending upon the output voltage. Output voltage is user adjustable with a single resistor.

Engineering samples available.IR SBI5AS

Features

  • Input voltage range: 3.3V to 9.0V DC
  • Output power: up to 20W. Output current: up to 6A maximum
  • Output voltage range: 0.8V to 3.3V (limited to no more than 85% of VIN), adjustable with an external resistor
  • Efficiency: up to 88%
  • 2.5% EOL total output voltage drift
  • 20MΩ @ 100VDC isolation, all pins to chassis
  • Remote voltage sense compensation
  • Fixed 500 kHz operating frequency
  • Power Output Status telemetry (POK) signal
  • Protection: short circuit and overload
  • Adjustable Input Under voltage lockout (UVLO)
  • Adjustable Soft start
  • Integrated input EMI filter to ensure stable operation without need for large external filter components
  • Output sequencing of multiple modules via Track and Enable pins
  • Enable pin with comparator type input
  • MTBF > 9 x106 hours
  • Operating case temperature range: -55°C to +125°C

Package

  • Size: 1.00”L x 1.00”W x 0.475”H (package body)
  • “Z” style for surface mount assembly
  • Low weight < 18 grams

Radiation Performance

  • Total Ionization Dose > 100 kRads (Si)
  • SEE Hardness: LET = 83 MeV.cm2/mg

Applications

  • Geosynchronous & low earth orbit satellites
  • FPGAs, CPLDs, DSPs and microprocessors